/Engine/Source/Runtime/Engine/Public/Rendering/SkeletalMeshLODRenderData.h
Serialize the portion of data that might be streamed
Size of streamed LOD data in bytes
void SerializeStreamedData ( [FArchive](API\Runtime\Core\Serialization\FArchive) & Ar, [USkinnedAsset](API\Runtime\Engine\Engine\USkinnedAsset) * Owner, int32 LODIdx, uint8 ClassStripFlags, bool bNeedsCPUAccess, bool bForceKeepCPUResources )